2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-4-hydroxy-3-((1-sulfo-6-((2-(sulfooxy)ethyl)sulfonyl)-2-naphthalenyl)azo)-, sodium salt 5-(Benzoylamino)-4-hydroxy-3-((1-sulpho-6-((2-(sulphooxy)ethyl)sulphonyl)-2-naphthyl)azo)naphthalene-2,7-disulphonic acid, sodium salt 85586-40-9 EINECS 287-842-4